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v3.22.2.2

Long-Term Debt and Short-Term Borrowings - Short Term Borrowings - Narrative (Details) € in Millions |  | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 05, 2022 USD ($) | Mar. 31, 2022 EUR (€) | Sep. 30, 2022 USD ($) | Sep. 30, 2022 EUR (€) | Jan. 01, 2022 | Dec. 31, 2021 USD ($) | May 21, 2021 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |
Letters of credit outstanding amount |  |  | $ 177,300,000 |  |  |  |
Revolving credit facility |  |  | $ 283,000,000 |  |  | $ 0 |
Revolving Credit Agreement | Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Minimum coverage ratio of EBITDA to total interest expense expressed in percentage | 2.00% |  |  |  |  |  |
Maximum leverage ratio of total debt less available cash to EBITDA expressed in percentage | 4.25% |  |  |  |  |  |
Maximum leverage ratio during first four quarter that qualified acquisition is consummated | 4.75% |  |  |  |  |  |
Revolving Credit Agreement | Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument term | 5 years |  |  |  |  |  |
Amounts available to borrow under credit agreement | $ 3,500,000,000 |  |  |  |  |  |
Additional accordion option | $ 350,000,000 |  |  |  |  |  |
Interest rate (as a percent) | 1000.00% |  |  |  |  |  |
Revolving Credit Agreement | Revolving credit facility | Line of Credit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Letters of credit outstanding amount | $ 300,000,000 |  |  |  |  |  |
Revolving Credit Agreement | Revolving credit facility | Fed Funds Effective Rate Overnight Index Swap Rate |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Variable rate (as a percent) | 0.50% |  |  |  |  |  |
Revolving Credit Agreement | Revolving credit facility | Secured Overnight Financing Rate (SOFR) Overnight Index Swap |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Variable rate (as a percent) | 1.00% |  |  |  |  |  |
Revolving Credit Agreement | Revolving credit facility | Minimum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Variable rate (as a percent) | 0.63% |  |  |  |  |  |
Revolving Credit Agreement | Revolving credit facility | Minimum | Base Rate |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Variable rate (as a percent) | 0.00% |  |  |  |  |  |
Revolving Credit Agreement | Revolving credit facility | Maximum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Variable rate (as a percent) | 1.10% |  |  |  |  |  |
Revolving Credit Agreement | Revolving credit facility | Maximum | Base Rate |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Variable rate (as a percent) | 0.10% |  |  |  |  |  |
2021 Credit Agreement | Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument term | 5 years |  |  |  |  |  |
Amounts available to borrow under credit agreement |  |  |  |  |  |  | $ 3,150,000,000
Credit spread adjustment rate |  |  |  |  | 0.0326% |  |
2021 Credit Agreement | Revolving credit facility | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Credit agreement applicable fixed rate spread |  |  | 0.68% |  |  |  |
Credit agreement applicable daily rate spread |  |  | 0.00% |  |  |  |
2021 Credit Agreement | Revolving credit facility | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Credit agreement applicable fixed rate spread |  |  | 1.075% |  |  |  |
Credit agreement applicable daily rate spread |  |  | 0.075% |  |  |  |
2021 Credit Agreement | Canadian, Australian and New Zealand subsidiaries | Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amounts available to borrow under credit agreement |  |  | $ 200,000,000 |  |  |  |
2021 Credit Agreement | U.K. subsidiaries | Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amounts available to borrow under credit agreement |  |  | 320,000,000 |  |  |  |
2027 Credit Agreement | Revolving credit facility | Turner & Townsend Holdings Limited |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amounts available to borrow under credit agreement | € |  | € 120.0 |  |  |  |  |
Additional accordion option | € |  | € 20.0 |  |  |  |  |
Revolving credit facility |  |  | 29,400,000 | € 26.3 |  |  |
2019 Credit Agreement | Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Initial borrowing | $ 220,000,000 |  |  |  |  |  |
Revolving credit facility | 283,000,000 |  |  |  |  |  |
2019 Credit Agreement | Revolving credit facility | Line of Credit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Letters of credit outstanding amount | $ 0 |  |  |  |  |  |
Revolving Credit Facility, Maturity Date November 11, 2022 | Revolving credit facility | Turner & Townsend Holdings Limited |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Revolving credit facility |  |  | 22,300,000 | 20.0 |  |  |
Revolving Credit Facility, Maturity Date November 11, 2022 | Revolving credit facility | Turner & Townsend Holdings Limited | SONIA |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Variable rate (as a percent) |  | 0.75% |  |  |  |  |
Revolving Credit Facility, Maturity Date February 21, 2023 | Revolving credit facility | Turner & Townsend Holdings Limited |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Revolving credit facility |  |  | $ 7,100,000 | € 6.3 |  |  |

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- Definition This element represents the maximum ratio of debt less available cash to earnings before interest, taxes, depreciation and amortization (EBITDA) allowed in the reporting entity's credit agreement. + References No definition available. + Details
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